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What is the difference between SEO, GEO and AEO?

Concept

SEO, GEO and AEO are three complementary disciplines that answer how people find information today.

The three disciplines

SEO optimises pages to rank them high in the list of links search engines return. GEO (generative engine optimization) optimises content and sources so the brand gets cited in the answers of generative engines such as ChatGPT and Gemini. AEO (answer engine optimization) optimises content so it gets used by answer engines that give a direct reply. SEO works on the link, GEO and AEO on the answer.

What they have in common

All three rest on the quality and standing of sources and on clear, checkable content. What changes is the end goal and the metrics, not the fundamentals.

Where Bikma sits

Bikma covers the measurement side of GEO and AEO: it builds the question set with the method validated with the University of Pisa and the University of Insubria, and measures where the brand appears in generative answers, with which sources and in what tone.